chore: java 25 support with gradle v9.1.0

[itkhanz]

Change list

• Updated Gradle Wrapper to v9.1.0. ./gradlew wrapper --gradle-version=9.1.0 --distribution-type=all
• With this release, Gradle supports Java 25.
• Updated the platform matrix to include java 25

https://gradle.org/releases/#9.1.0
https://docs.gradle.org/current/release-notes.html

Types of changes

What types of changes are you proposing/introducing to Java client?
Put an x in the boxes that apply

• No changes in production code.
• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Details

Java 25 support.